i think the actual possibilties of things happening are as so:
dadaji is actually not the father, but the brother of naitinks father. maybe the business might break. this would obvioulsy happen over some family fight. maybe they will find ghar jamai for nandini who will enter business, but will actually be a negative character and steall all the business. and throw out naitik and his family.
nandin and rashmi both will fall and love with mohit and family fight. where dadaji will have majority shares of busienss and throw them out.
naitik might becoeme intelligetn and decide to leave the house to fix his marriage and to lift the burden of his wide.
dadaji might die. and naitik mom will take his place as moral police
naitink might die. akshara to marry again, ofcourse dadaji will say no. it will be like prem rog. and either rituraj comes back or the guy from aksharas college! lets hope this happens will make the show more interesting!